Electromagnetic Lock Surface Mount Opening Action Electromagnetic or Manual Steel Amp Draw @ 12V 1.20 Amp Draw @ 24V 750mA Input Voltage 12/24V DC Projection from Wall (In.) 3 in Features Delayed Egress for Double Outswing Door Total Projection (In.) 3 in Holding Force (Lb.) 1 500 Armature Length (In.) 7 3/8 in Armature Width (In.) 2 5/16 in Armature Depth (In.) 1/2 in Lock Body Length (In.) 22 in Lock Body Width (In.) 2 3/4 in Lock Body Depth (In.) 3 in